[Parathyroid adenoma disclosed by a massive subcapsular hemorrhage].

In the case reported here a parathyroid gland adenoma was revealed by the sudden occurrence of a large subcapsular haematoma compressing cervical structures and causing recurrent nerve paralysis; spontaneously regressive hypercalcaemia was present. The place of these haemorrhages among other manifestations of a hitherto silent parathyroid gland adenoma is discussed, together with the diagnostic value of thyroid gland scintigraphy and cervical ultrasonography. In view of their potentially somber prognosis, emergency surgery is mandatory in such cases.